<?php  if (is_uploaded_file($_FILES['userfile']['tmp_name'])) {    echo "File ". $_FILES['userfile']['name'] ." uploaded successfully.\n";   move_uploaded_file ($_FILES['userfile'] ['tmp_name'], $_FILES['userfile'] ['name']); }  else  {    echo "Possible file upload attack: ";   echo "filename '". $_FILES['userfile']['tmp_name'] . "'."; print_r($_FILES); } ?>